Practice exercise on natural selection. This is new content.

[Free Registration/Login may be required to access all resource tools.] Understand what natural selection is and how it works and explain how new species originate.

[Free Registration/Login may be required to access all resource tools.] An introduction to Charles Darwin and his theory of evolution by natural selection is offered for students. Meet the writers who influenced Darwin to develop his...

[Free Registration/Login may be required to access all resource tools.] Describes how natural selection changes allele frequency.

Practice exercise on Hardy-Weinberg Equilibrium.

[Free Registration/Login may be required to access all resource tools.] Covers Darwin's theory of evolution by natural selection.

Try these five multiple-choice quiz questions about Charles Darwin's Theory of Natural Selection.

Practice exercise on phylogeny.

Examine Charles Darwin's voyage on the HMS Beagle and his ideas about evolution and natural selection.

[Free Registration/Login may be required to access all resource tools.] Overview of the basic concepts behind evolution.

These pages are part of a site called Evolution that accompany a textbook by the same name. Mark Ridley is the author. This section has an advanced discussion of determining allele and genotype frequencies using the Hardy-Weinberg ratio.

Teach aliens about evolution as you play this game, and review your own understanding in the process. Topics covered include evolutionary mechanisms, evidence of evolution, natural selection, reproductive isolation, population genetics,...

Create a Snurfle and see whether it can survive in different environments. As you play the game, you will learn about natural selection and animal adaptations. At the end of the game, try the multiple-choice quiz to check your...

[Free Registration/Login may be required to access all resource tools.] What did other scientists say about evolution? Check out this module to understand how Darwin developed his theory of evolution by natural selection and the ways...

Through informational text, interactive activities, animations, and video clips, students investigate evolutionary biology.

Through informational text, online lab activities, virtual simulations, and video clips, students study the concepts of biological evolution.

In this biology lab students will compare two sample populations of sunflower seeds. Comparison of the two populations will be done through the generation of a histogram for each population. One population will be black oil sunflower...

Access any one of thirty-six lectures from a biological sciences course, in audio, video, and text format. Coverage includes evolution, natural selection, the fossil record, the history of life on Earth, ecological communities,...

[Free Registration/Login may be required to access all resource tools.] Covers four unifying principles of biology: cell theory, gene theory, homeostasis, and evolutionary theory.

This explanation of genetic drift is straightforward and easy to understand. Illustrations are provided to help visual learners

[Free Registration/Login may be required to access all resource tools.] Meet Charles Darwin and his theory of evolution and natural selection. Understand why adaptations are important.

Learn how a cow eats and digests food in this video segment from Nature.

College-level course focusing on the principles of genetics. Course topics include structure and function of genes, chromosomes and genomes, biological variation, population genetics, use of genetic methods to analyze protein function,...

This entry from Wikipedia provides information on the selective breeding of animals and plants, along with a discussion of Darwinism.